Auction Insights summarizes how an advertiser’s eligible search auctions overlap with other advertisers. It can help explain competitive visibility, but it does not reveal a competitor’s full strategy, total market share, or business results.
Know what the measures describe
Metrics such as impression share, overlap rate, position-above rate, top-of-page rate, and outranking share describe different relationships in the eligible auction set. Read each definition rather than treating the columns as interchangeable.
The report may be limited by date range, campaign type, volume, and available comparisons. It is a partial view of auctions in which the reporting account was eligible.
Compare like campaigns and periods
Use comparable campaign scope, geography, network, and dates. A competitor may appear to change position because the advertiser’s own targeting or eligible impressions changed.
Segment brand and nonbrand campaigns where relevant. A branded auction set can have a different competitive context from a broad category campaign.
Connect visibility to business outcomes
Pair auction metrics with search-term relevance, cost, qualified conversion, and landing-page fit. More competitive visibility can raise cost without improving the quality of demand.
Use the report to form a hypothesis, such as testing an ad or budget change for a valuable query group. Avoid reacting to every competitor movement.
Keep an evidence trail
Capture the campaign, date range, metric definition, and change under consideration. Compare outcomes after a measured adjustment, allowing for auction variability.
Our guide to Search Impression Share explains another visibility measure and its limitations.
Related reading: search impression share.
Practical checklist
- Confirm the business purpose and the conversion definition before changing settings.
- Document scope, timing, and attribution limits so reports remain interpretable.
- Review downstream quality after a controlled change.
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